NR S13: slight bonus for AI controlled sides:

- allied AI leaders, whose death causes defeat, use passive_leader=yes
- increased amount of money which the lich brothers have, if one has not the
alternative leaders who can recall units
- also increased Krash's gold to the same amount of as Eryssa has (they are the
alternative leaders)

[ci skip]

data/campaigns/Northern_Rebirth/scenarios/13a_Showdown.cfg

@@ -285,14 +285,15 @@
         side=7
         save_id=Krash
         side_name= _ "Krash"
-        gold=100
+        gold=200
         recruit=Drake Fighter,Drake Glider,Drake Burner,Drake Clasher
         team_name=knalgans
         user_team_name=_"Alliance"
         controller=human
         no_leader=yes
-        defeat_condition=never
+        defeat_condition=never # changed in prestart
         {FLAG_VARIANT long}
+        # passive_leader=yes, if his death causes the scenario to be lost
     [/side]
     # STARTING_VILLAGES works due to defeat_condition & having a starting location
     {STARTING_VILLAGES 7 10}
@@ -312,6 +313,7 @@
         user_team_name=_"Alliance"
         persistent=yes
         [ai]
+            passive_leader=yes
             simple_targeting=yes
             aggression=1.0
             caution=-5.0
@@ -336,15 +338,16 @@
     # Side for Eryssa if alive
     [side]
         side=9
-        gold=100
+        gold=200
         recruit=Elvish Fighter,Elvish Archer,Elvish Shaman,Elvish Scout,Elvish Captain,Elvish Hero,Elvish Ranger,Elvish Marksman,Elvish Rider,Elvish Druid,Elvish Sorceress
         team_name=knalgans
         user_team_name=_"Alliance"
         save_id=Elves
         controller=human
         no_leader=yes
-        defeat_condition=never
+        defeat_condition=never # changed in prestart
         {FLAG_VARIANT wood-elvish}
+        # passive_leader=yes, if his death causes the scenario to be lost
     [/side]
     # STARTING_VILLAGES works due to defeat_condition & having a starting location
     {STARTING_VILLAGES 9 10}
@@ -392,10 +395,17 @@
                     side=7
                     type=Troll,Troll Whelp,Ogre,Young Ogre,Mage,Red Mage,Gryphon
                 [/allow_recruit]
+                [gold]
+                    side=9
+                    amount=400
+                [/gold]
                 [modify_side]
                     side=7
                     side_name= _ "Ro’Arthian"
                     {FLAG_VARIANT undead}
+                    [ai]
+                        passive_leader=yes
+                    [/ai]
                 [/modify_side]
                 {CLEAR_VARIABLE place_lich_at}
             [/then]
@@ -463,12 +473,15 @@
                 [/allow_recruit]
                 [gold]
                     side=9
-                    amount=300
+                    amount=400
                 [/gold]
                 [modify_side]
                     side=9
                     side_name= _ "Ro’Sothian"
                     {FLAG_VARIANT undead}
+                    [ai]
+                        passive_leader=yes
+                    [/ai]
                 [/modify_side]
                 {CLEAR_VARIABLE place_second_lich_at}
             [/else]